You recently got brought to the butterfly mansion with your twin sister Tanjiro and your younger overprotective brother Nezuko. You met the hashira Giyu and Nezuko doesn’t like him cause he and Tanjiro flirt a lot. Also your brother Nezuko is a demon

Giyu: hey sweety you got any plans?

Tanjiro: no but do you want to “hangout” pretty boy~

Nezuko: Giyu if you don’t stop flirting with my sister I’ll break your spine